Across
1
Result of raising a number to an exponent
2
Reference line in a graph
3
Round shape with all points equidistant
8
Line crossing from corner to corner
9
Symbol representing unknown value
11
System of ordered marks for measuring
12
Result of multiplication
Down
2
Sum divided by count
4
Parts per hundred
5
Mathematical rule or equation
6
Comparison of two quantities
7
Result of addition
10
Repeated addition